SwiftUI preview Crash when using tasks on a view (when supporting iOS 14)

Hello, I encountered something that seems like a bug in XCode/Swift that's easy to reproduce:

in a swift Package, depending on the supported platform, I get a crash upon tapping the button in a preview. iOS 14 -> Crash iOS 15 + -> No issue

here is the package.swift for repro

import PackageDescription
let package = Package(
    name: "PreviewCrashDemo",
    platforms: [.iOS(.v14)], // Changing this to iOS 15 fixes the crash ><
    products: [
        .library(
            name: "PreviewCrashDemo",
            targets: ["PreviewCrashDemo"]),
    ],
    dependencies: [],
    targets: [
        .target(
            name: "PreviewCrashDemo",
            dependencies: []),
    ]
)

And here is the code for my preview:

struct Test_Previews: PreviewProvider {
    static var previews: some View {
        Button("Hello world") {
                Task {
                    print("Hi!")
                }
            }
            .previewDisplayName("Crash on iOS 14")
    }
}